Pressure and Level Transmitter PZT 200/201 Hengesbach


The PZT pressure transmitters are suitable for taking pressure and filling level measurements in pipelines and containers. The modular process connection system offers a wide range of connection adapters and helps to cut costs in the long term. The flush-mounted process connection with elastomer-free sealing cone is predestined for measurements which satisfy even the most stringent hygiene requirements.

The vacuum-proof measuring cell with stainless steel membrane works on the basis of the piezoresistive measuring principle The PZT pressure transmitters are designed to measure from -1/0…0.35 to -1/0…100bar. Special measuring ranges are also available on request. Given the nature of the design for long-term medium temperatures of up to 125°C / 200°C, CIP and SIP cleaning methods can be used on the transmitters. The high protection classes of IP67 and IP69K also mean that the devices can be safely cleaned on the outside with foam and a high-pressure cleaner and that moisture is reliably prevented from entering into the device.


  • Modular process connection system with elastomer-free sealing cone
  • High precision 0.05% fs, turn down 10, vacuum safe
  • Optional with hart®protocol
  • Tank linearisation for standard tank shapes and special designs thanks to volumetric measurement
  • Diagnosis function for monitoring of devices
  • Copying of device parameters with easy transfer
  • Application strengths: measurement of content of pressurised tanks / vacuum measurements with high temperatures


General details

Device type / measuring principlePIEZOTEC PZT 200/201/200H/201H: piezoresistive   


Measuring rangesPZT 200/201/200H/201H   
Standard nominal measuring ranges [bar]relativeOPabsoluteOP
OP = overload protection [bar]0...0.351  
Special measuring ranges -1/0...5150...515
All measuring cells are vacuum-proof-1/0...30900...3090
Setting the measuring rangesVia the keypad of the OPUSi display and operating module / via the integrated on-site display   
 Optional: via HART®   
Setting rangesStart the measuringzero:0 to 90% of the sensor's nominal measuring spanTD=10
 Measuring span span: 10 to 100% of the sensor's nominal measuring span 
Burst pressure DIN16086≥ 4-fold measuring range   


Output signal2-wire:   4...20mA with a test circuit connection in the device   
 Optional: 4...20mA HART®   
Fault signalOptional: 3.8mA, 22mA, hold (i.e. holding the last value)   
Current limitation3.85mA and 21.5mA (normal operation)   
Integration timeContinuously selectable between 0 and 300 s (setting time after a pressure leap)   

Measuring accuracy

Reference conditionsacc. to DIN IEC 770   
Linearity, hysteresis and repeatability as per the limit point method DIN IEC 770≤ ± 0.05% of the sensor's nominal measuring range   
Activation time< 5s (the device will carry out a self-test.)   
Setting time (without damping)< 200ms   
Long-time drift≤ 0.2% of the span per year   
Thermal hysteresis≤ ± 0.2% of the sensor's nominal measuring range / 10K (-20 to +80°C) from 4bar   
 ≤ ± 0.3% of the sensor's nominal measuring range / 10K (-20 to +80°C) up to 0.6bar   

Conditions of use

Installation position / calibration positionAny position / standing vertically (position-dependent zero point displacement)   
Medium temperatureT1: -40...+125°C (140°C over one hour at the most)   
 T2: -40...+200°C (high-temperature version)   
Ambient storage temperatureType 201/201H:-40...+85°C  
 Type 200/200H:-30...+75°C  
 (Below -20°C cable breakage might occur and the display's function may be impaired.)   
Protection class acc. to EN60529IP 67 and IP 69K   
Electromagnetic compatibilitySensitivity against interference: acc. to DIN IEC 61000-6-2   
 Interference radiation:acc. to DIN IEC 61000-6-4  

Download Data Sheet: Pressure and Level Transmitter PZT 200/201